Quantitative Aptitude - Arithmetic Ability Questions

If a2+b2+c2=14 and a+b+c=6, then the value of ab+bc+ca is,

If x = 2+32-3, then what is the value of x2+x-9 ?

A plane flies a distance of 1800 km in 5 hours. What is its average speed in meters/second?

Excluding stoppages, the speed of a bus is 60 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?

If x + (1/x) = √13, then what is the value of x5 – (1/x5)?

If xy = -18 and x2+ y2= 85, then find the value of (x + y).

What is the angle between the two hands of a clock when the time shown by the clock is 8 p.m.?(in degrees)

Selling price of a table is Rs 2808. If profit percentage is 17%, then what is the cost price (in Rs) of table?